A government motion filed shortly before 11 a.m. U.S. District Judge Garr M. King to postpone Mohamud's June 27 sentencing from between 60 to 90 days.

"This motion is based on the need for additional time for the government to prepare its sentencing recommendations," wrote Assistant U.S. Attorneys Ethan D. Knight and Pamala Holsinger. "The defendant, through his attorney, Stephen R. Sady, has been contacted and has not yet stated his position."

Lead federal prosecutor Ethan D. Knight spoke to news media after a jury in U.S. District Court found Mohamed Osman Mohamud guilty of attempting to detonate a bomb at Portland's 2010 holiday tree-lighting ceremony.

The motion also asked King to allow both government and defense legal teams to file their sentencing memos two weeks before whatever date King might set for the new sentencing.

It was unclear how King might rule on this morning's request.

A jury in Portland's U.S. District Court found Mohamud guilty on Jan. 31 of the only criminal charge he faces: Attempted use of a weapon of mass destruction.

Mohamud, who turns 22 in August, was 19 years old on Nov. 26, 2010, when he attempted to detonate what he thought was a massive fertilizer bomb next to thousands of people gathered for Portland's holiday tree lighting ceremony. The bomb, however, was a harmless fake rigged by the FBI and presented to him by two undercover agents posing as al-Qaida terrorists.

Mohamud's defense team mounted an entrapment defense, arguing that the FBI took a vulnerable teen and turned him into a terrorist.